Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 210 [Rate centres in NPA 210] [Dial plan for NPA 210]

NXX: 526

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
210-526 A San Antonio TX SNANTX39DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 566      
210-526 0 San Antonio TX SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566   2011-06-24   
210-526 1 San Antonio TX SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2010-11-18   
210-526 2 San Antonio TX SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2010-12-30   
210-526 3 San Antonio TX SNANTX39DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 566   2010-07-31   
210-526 4 San Antonio TX SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2010-12-30   
210-526 5 San Antonio TX SNANTXCADS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566   2010-11-15   
210-526 6 San Antonio TX SNANTX39DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 566   2010-11-19   
210-526 7 San Antonio TX SNANTX39DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 566   2010-11-19   
210-526 8 San Antonio TX SNANTX39DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 566   2010-11-19   
210-526 9 San Antonio TX SNARTX91DS0  8958 XO TEXAS, INC. 566   2011-01-10   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.